ISSN 2594-5297
57° Seminário de Laminação e Conformação de Metais — vol. 57, num.57 (2022)
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Abstract
THE OVERALL QUALITY OF HEAVY PLATES AND HOT-ROLLED STRIP IS DETERMINED NOT LEAST BY THEIR SURFACE QUALITY. THE OPTICAL, TWO DIMENSIONAL (2D) INSPECTION OF ROLLED STEEL SURFACES FOR QUALITY CONTROL IS STATE OF THE ART AND WELL ESTABLISHED TODAY. HOWEVER, DURING ROLLING OF HEAVY PLATES THE APPLICATION OF 2D INSPECTION IS VERY LIMITED DUE TO COMMONLY HEAVY SURFACE STRUCTURE. FURTHERMORE, THE DEFECT DEPTH IS CRITICAL IN PLATE GRADING. INSPECTION OF THE ROLLED PLATE SURFACE BY LASER TRIANGULATION (3D) INSPECTION OFFERS FAST AND RELIABLE DETECTION AND CLASSIFICATION OF SURFACE DEFECTS, PROVIDES DEFECT DEPTH INFORMATION AND IS APPLICABLE EVEN DURING THE ROLLING PROCESS. THIS ARTICLE DESCRIBES THE BASIC PRINCIPLES OF THIS TECHNOLOGY AND ITS APPLICATION IN INDUSTRY ALONG WITH RESULTS FROM THE FIELD. ADDITIONALLY, TWO NEW DEVELOPMENTS FOR HOT STRIP MILLS – AN INFRARED CHANNEL AS WELL AS A FEATURE FOR COIL TAIL MEASUREMENT – WILL BE PRESENTED HERE. THE INFRARED CHANNEL ENABLES MAKING USE OF THE THERMAL RADIATION OF THE HOT STRIP PROVIDING A COMPLETELY NEW VIEW OF THE STEEL SURFACE. BY THIS AND THE NEW COIL TAIL MEASUREMENT ADD-ON, QUALITY MANAGEMENT AS WELL AS MATERIAL HANDLING WILL BE IMPROVED LEADING IN THE END TO THE REDUCTION OF SCRAP AND CO2 EMISSIONS.
THE OVERALL QUALITY OF HEAVY PLATES AND HOT-ROLLED STRIP IS DETERMINED NOT LEAST BY THEIR SURFACE QUALITY. THE OPTICAL, TWO DIMENSIONAL (2D) INSPECTION OF ROLLED STEEL SURFACES FOR QUALITY CONTROL IS STATE OF THE ART AND WELL ESTABLISHED TODAY. HOWEVER, DURING ROLLING OF HEAVY PLATES THE APPLICATION OF 2D INSPECTION IS VERY LIMITED DUE TO COMMONLY HEAVY SURFACE STRUCTURE. FURTHERMORE, THE DEFECT DEPTH IS CRITICAL IN PLATE GRADING. INSPECTION OF THE ROLLED PLATE SURFACE BY LASER TRIANGULATION (3D) INSPECTION OFFERS FAST AND RELIABLE DETECTION AND CLASSIFICATION OF SURFACE DEFECTS, PROVIDES DEFECT DEPTH INFORMATION AND IS APPLICABLE EVEN DURING THE ROLLING PROCESS. THIS ARTICLE DESCRIBES THE BASIC PRINCIPLES OF THIS TECHNOLOGY AND ITS APPLICATION IN INDUSTRY ALONG WITH RESULTS FROM THE FIELD. ADDITIONALLY, TWO NEW DEVELOPMENTS FOR HOT STRIP MILLS – AN INFRARED CHANNEL AS WELL AS A FEATURE FOR COIL TAIL MEASUREMENT – WILL BE PRESENTED HERE. THE INFRARED CHANNEL ENABLES MAKING USE OF THE THERMAL RADIATION OF THE HOT STRIP PROVIDING A COMPLETELY NEW VIEW OF THE STEEL SURFACE. BY THIS AND THE NEW COIL TAIL MEASUREMENT ADD-ON, QUALITY MANAGEMENT AS WELL AS MATERIAL HANDLING WILL BE IMPROVED LEADING IN THE END TO THE REDUCTION OF SCRAP AND CO2 EMISSIONS.
Keywords
Automatic surface inspection; Laser triangulation; IR channel; Coil tail measurement
Automatic surface inspection; Laser triangulation; IR channel; Coil tail measurement
How to refer
Recker, Dominik;
Weigelt, Simone Katharina;
Mello, Alan.
3D&2D SURFACE INSPECTION TECHNOLOGIES FOR HOT-ROLLED HEAVY PLATE AND STRIP
,
p. 579-589.
In: 57° Seminário de Laminação e Conformação de Metais,
São Paulo,
2022.
ISSN: 2594-5297
, DOI 10.5151/2594-5297-35070
